Published August 18, 2011, 12:00 AM
Crews search for Asian carp in the Chicago Sanitary and Ship Canal
Crews search for Asian carp in the Chicago Sanitary and Ship Canal in Lockport, Ill., on Dec. 3, 2009. The Army Corps of Engineers was studying whether to separate the Great Lakes and Mississippi watersheds, which could include returning the Chicago River's original flow in an attempt to stop Asian carp and other invasive species from traveling through the two basins. The flow of the river into the lake was reversed in the late 1800s to prevent pollution from reaching Lake Michigan. (AP Photo/M. Spencer Green, File)
Read the article: Huge fish spurs call to 're-reverse' Chicago River
Read the article: Feds to spend $50 million on Asian carp fight for Great Lakes
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